Venetian blind



.5am 28, 1958 J. L. sATosKY 2,821,247

VENETIAN BLIND Filed May 24, 1954 ATTORNEY Unite VENETIAN BLIND Application May 24, 1954, Serial No. 431,996

2 Claims. (Cl. 1611-176) This invention relates to Venetian blinds and more particularly to an improved head bar for Venetian blinds.

In conventional types of Venetian blinds, the top slat does not quite touch the bottom surface of the head bar, thus providing a leakage of light between the top slat and the head bar.

It is an object of the present invention to provide an limproved head bar against which the uppermost slat may rest whereby any light line between the upper slat and the head bar is eliminated.

It is a further object of the present invention to provide an improved head bar for concealing the operating mechanism of the Venetian blind which lends itself to being mounted to the head jamb of a window opening and supported by means of attachment with the side jambs of the window opening, eliminating any light spaces between the head bar and the top slat of the blind.

Other objects and the nature and advantages of the instant invention will be apparent from the following description taken in conjunction with the following drawings, wherein:

Fig. l is a sectional view taken on the line 1--1 of Fig. 3, illustrating the slats in a horizontal position;

Fig. 2 is a similar sectional View, illustrating the blind slats in fully inclined position in one direction and in dotted lines in fully inclined position in the opposite direction; and

Fig. 3 is a fragmentary front view of the invention.

Referring to Fig. 3, a Venetian blind is shown in position inside a window frame wherein it is supported in the usual manner by supporting brackets designated generally at 10, in which is held the head bar 11. In the head bar 11 are located the mechanisms which support the blind and by which it is operated, such as the tilting mechanism.

The blind proper is of the usual construction and consists of the ladder tapes 12 which carry the slats 13. The blind is raised and lowered in the usual manner by means of cords 14 which are secured to the bottom rail and pass over pulleys mounted in the head bar.

The tilting of the slat members of the blind is effected by means of rocker members 15 mounted on a tilting shaft 16. The upper ends of the ladder tapes 12 are attached to the rocker members. Each rocker member is of generally cylindrical shape and is pivotally mounted for tilting in either direction for effecting alternate raising and lowering of the opposite vertical tapes of the ladder tape members to an equal degree or extent from their normal horizontal position shown in Fig. 1.

The rocker members 15 are preferably made of light pressed sheet or cast metal and are adapted to rotate with the tilting shaft 16. The upper end of each vertical States Patent M 2,821,247 Patented Jan. 28, 1958 tape of the ladder tape 12 is secured to the top portion of the rocker member 15 in any suitable manner. By rotating the rocker members 15 in either direction, a corresponding tilt is transmitted through the ladder tapes 12 either for partial or entire closing of the slats, as shown in Fig. 2. Tilting of the rocker members may be accomplished by pulling on one of the tilting cords not illustrated.

It will be noted that as the rocker members are tilted, the vertical tapes of the ladder tapes move in opposite vertical directions and in the nal movement to the fully closed position the upper slat moves in a vertical direction to the head bar.

T o eliminate the light between the head bar and the upper slat, the lower surface of the head bar is provided with a pair of depressions 20 extending upwardly into the head bar. The depressions are located near the front and rear wall of the head bar and are spaced apart approximately the diameter of the rocker member. Thus, as the blind is tilted to the closed position, the upper slat moves upwardly into one of the depressions 20, as shown in Fig. 2, thereby eliminating the passage of light between the upper slat and the lower wall of the head bar when in the fully closed position. The depressions 20 extend throughout the entire length of the head bar.

Of course, if desired, only one depression can be provided to receive the upper slat in one of the fully closed positions.

The depressions have the added value of strengthening the head bar throughout its length.

It will be obvious to those skilled in the art that various changes may be made without departing from the spirit of the invention and therefore the invention is not limited to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

What is claimed is:

l. In a Venetian blind assembly including a plurality of slats, a head bar having a front and rear wall and a substantially flat bottom surface, the uppermost of said slats being located directly below said bottom surface, means for tilting said slats from a horizontal position to a fully tilted and raised position, said raising being accomplished after completion of the tilting operation, said tilting and raising means being located within said head bar, a pair of depressions provided on said at bottom surface of said head bar each adapted to receive an opposite edge lof said uppermost slat as the slats are tilted to the two fully tilted and raised positions each said depression extending across the length of said head bar, each of said depressions being adapted to receive the slat edge during tilting of the slats only when the fully tilted and raised position in each direction has been reached.

2. In a Venetian blind assembly in accordance with claim 1, wherein one of said depressions is located near the front wall of said head bar and the other of said depressions is located near the rear wall of said head bar, said depressions acting to prevent the passage of light between the upper slat edge and the head bar when the slat is in the fully tilted and raised position.

References Cited in the tile of this patent UNITED STATES PATENTS 2,003,174 Cooper May 28, 1935 2,412,583 Jablin Dec. 17. 1946 2,455,135 Nelson Nov. 30, 1948 

